“You can’t store the energy created by wind and solar sources quite so easily”
Sure you can. By using 100% of them as they are available, you do not need to use the water behind a dam, saving it for when it is required.
....Bob
That certainly does work — where you’re close enough to the hydro dams to schedule the loads appropriately.
The biggest wind power states are in the area east of the Rockies, tho — southeast (or southern) WY, ND, SD, MN, etc. Not much hydro in the area for storage.